kernel: x86: exceptions are not cleared in AMD FXSAVE workaround
Published Jan 18, 2014
4.7
MEDIUMCVSS 2.0
EPSS 0.65%
Description
The restore_fpu_checking function in arch/x86/include/asm/fpu-internal.h in the Linux kernel before 3.12.8 on the AMD K7 and K8 platforms does not clear pending exceptions before proceeding to an EMMS instruction, which allows local users to cause a denial of service (task kill) or possibly gain privileges via a crafted application.
Affected products
No data.
- ≤ 3.12.7
- 3.12
- 3.12.1
- 3.12.2
- 3.12.3
- 3.12.4
- 3.12.5
- 3.12.6
No data.
Red Hat Enterprise MRG 2
kernel-rt-0:3.10.33-rt32.33.el6rt
Fixed · RHSA-2014:0439
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise MRG 2 | kernel-rt-0:3.10.33-rt32.33.el6rt | Fixed | RHSA-2014:0439 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise Linux 6.
References (25)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=26bef1318adc1b3a530ecc807ef99346db2aa8b0 x_refsource_CONFIRM
- http://lists.fedoraproject.org/pipermail/package-announce/2014-January/126858.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2014-January/126874.html vendor-advisoryx_refsource_FEDORA
- http://www.halfdog.net/Security/2013/Vm86SyscallTaskSwitchKernelPanic/ x_refsource_MISC
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.8 x_refsource_CONFIRM
- http://www.mandriva.com/security/advisories?name=MDVSA-2014:038 vendor-advisoryx_refsource_MANDRIVA
- http://www.openwall.com/lists/oss-security/2014/01/14/1 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/64781 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1029592 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2113-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2117-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2133-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2134-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2135-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2136-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2138-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2139-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2141-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2014-1438 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1052914 x_refsource_CONFIRMIssue Tracking
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2014-1514 Advisory
- https://github.com/torvalds/linux/commit/26bef1318adc1b3a530ecc807ef99346db2aa8b0 x_refsource_CONFIRM
- https://lkml.org/lkml/2014/1/9/637 mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2014-1438
- https://www.cve.org/CVERecord?id=CVE-2014-1438
Change history (0)
No recorded changes yet.
CVE.org / MITRE
CISA Vulnrichment
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GitHub
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